I installed KDE Plasma 5.18.5 on standard Ubuntu 20.04, and I'm enjoying it. However, something is badly wrong with the colors of Gimp (I've always used Gimp's Dark theme). Maybe I also have some KDE theme setting that's causing this?
The tool menu is badly colored:
But these menus are completely unusable - I can't see the values:
1 Answer
Change the Gimp Theme
This appears to be a problem with Gimp's "Dark Theme" and my KDE Plasma settings. In Gimp, under Edit -> Preferences -> Interface -> Theme, change the theme to Gray, Light, or System. Any of these works, while Dark does not:
BTW: Icon Theme
You may also want to change the Icon Theme from Symbolic, which is very low-contrast and muddy:
Call me old school, but I like the "Legacy" icon theme, personally: